Part Seven In Part 6, I queried the change in number sequence from 29xxx series to27xxx, some of it would have been explained if I had managed to get to the N.R.M. to look at the Boiler Orders, but unfortunately I got 5 weeks in hospital and 10weeks of convalescence instead. My thanks to all the Members who sent me get well cards. Back to the subject in hand Mr Bernard Harding has put me back on track with a list of Boiler Orders, and the Boiler Number to which they apply :-
Mr Peter Townend has given me sight of a Doncaster Memo in respect of the first two original 180 lbs./ sq. ins. Boilers fitted to Engs. No. 1470 and 1471. The Memo only gave a minimum amount of information with regard to usage, details of major repairs and total mileage. By adding other relevant information to the details given on the Memo, a reasonably full story of the lives of these two boilers can be built up. These are not Diag. 107 boilers, and in theory, should not be included in this discourse. However as someone at Doncaster took the time to get the fact's, probably with the intention of checking if they had had value for money.(??) I thought it appropriate to expand on the details to see exactly what happened with these early boilers to try and get a better understanding of later practices. CLASS A1 ORIGINAL 180 lbs/sq in BOILERS BOILER No. 7646 When new (1/22) onto Eng No. 1470 GREAT NORTHERN, into traffic
11/4/22, and remained with this engine until 4/3/27, a period of 4yrs 11mths.
During this time the engine was in works for :- The Boiler was under repair and/or spare from 4/3/27 to 15/12/27, a period of 9mths. Into traffic with Eng No. 4473 SOLARIO 15/12/27 remaining with
this engine until 5/9/29 a period of 1yr 10mths, during this time the engine
was in works for :- The Boiler was under repair and/or spare from 5/9/29 to 12/4/30,
a period of 7mths. Into traffic with Eng No. 4478 HERMIT 12/4/30 remaining with this
engine until 5/1/33, a period off2yrs 9mths. During this time the engine was in
works for :- The Boiler was under repair and/or spare from 5/1/33 to 25/5/33,
a period of 4mths. Into traffic with Eng No. 4470 GREAT NORTHERN 25/5/33 remaining
with this engine until 15/1/37, a period of3yrs 8mths. During this time the
engine was in works for :- The Boiler was under repair and/or spare from 5/1/37 to 2/10/37,
a period of 9mths. Into traffic with Eng No. 4474 VICTOR WILD 2/10/37 remaining with
this engine until 10/8/42 a period of 4yrs 10mths . During this time the engine
went into works for :- Summarising the above, the Total Life Span of the boiler was
20yrs 4mths, the Total Working Life was 17yrs 11mths, from which can be
deducted time in works whilst remaining with an engine, 647 days (approx
21½ months), giving an Actual Working Life of 16yrs 1½mths. Out
of use between changes of engine 2yrs 5mths, to which can be added, time in
works with an engine, 21½mths, giving an actual Out of Use total of 4yrs
2½mths Total mileage was 1, 040,315. BOILER No. 7647 When new (2/22) onto Eng No. 1471 (SIR FREDERICK BANBURY from
10/11/22), into traffic 10/7/22 and remained with this engine until 22/3/27, a
period of 4yrs 8mths. During this time the engine was in Works for :- The Boiler was under repair and/or spare from 22/3/27 to 5/4/28,
a period of 11mths. Into traffic with Eng No. 4476 ROYAL LANCER 5/4/28 and remained
with this engine until 20/3/31, a period of 4yrs. During this time the engine
was in works for :- The Boiler was under repair and/or spare from 20/3/31 to 3/12/31,
a period of 9mths. Into traffic with Eng No.4479 ROBERT THE DEVIL 3/12/31 and
remained with this engine until 16/8/34 a period of 2yrs 9mths. During this
time the engine was in works for :- The Boiler was under repair and/or spare from 16/8/34 to 1/11/34, a period of 3mths. Into traffic with Eng No. 4473 SOLARIO 1/11/34 and remained with this engine until 10/2/36, a period of 1yr 3mths . During this time the engine was NEVER in works for repair. The Boiler was under repair and/or spare from 10/2/35 to 23/6/36
a period of 4 mths. Into traffic with Eng No. 2552 SANSOVINO 23/6/36 and remained
with this engine until 12/7/43 a period of 7yrs 1mth. During this time the
engine was in works for :- Summarising the above the Total Life Span of the Boiler was
21yrs, the Total Working Life was 18yrs 9mths , from which can be deducted time
in works whilst remaining with an engine - 823 days (approximately 2yrs 3mths),
giving an Actual Working Life of 16yrs 6mths. Out of Use between changes of
Engine was 2yrs 3mths, to which can be added time in Works with an Engine -
2yrs 3mths, giving an Actual Out of Use total of 4yrs 6mths. Total mileage was
1,061,548 miles. What conclusions can be draw from the above. Were the fireboxes
life expired when they were replaced or was it part of a preventative
maintenance policy to replace the Fireboxes every 4 to 5 years. Researched and written by Mel Haigh, |
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